Answer:

Step-by-step explanation:
sry if im wrong
Part (b)
We use the result of part (a) and plug in (x,y) = (0,0). This is directly from the initial condition y(0) = 0.

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This means,

is the solution with the initial condition y(0) = 0.
Answer:
C
Step-by-step explanation:
Using calculator to evaluate
≈ 20.5191 → C
Answer:
f = 7
Step-by-step explanation:
7f = 49
Divide each side by 7
f = 7